646 XEW JERSEY AGEICULTUEAL COLLEGE 



Growth started earh- in April, and a few blossoms opened on the 

 27th. On the 30th was in full bloom and on Ma}' 11th was out of 

 bloom, in full leaf, with indications of a moderate set of fruit. From 

 one cause or another the set diminished until the crop consisted of 

 ten pears, harvested late in September. 



May 2Tth, sprayed one of the lower branches with a soluble pe- 

 troleum (sample), one part in thirty parts of water, to test effect on 

 foliage. Three days later not only foliage but even some of the 

 sappy shoots showed so much injury that the material was discarded 

 for summer use. 



August 31st, sprayed with Kerosene-resin Emulsion Xo. 3, one to 

 thirty parts of water, imtil the tree dripped from every leaf. Xo 

 marked injury developed later, and up to late October the foliage 

 maintained its hold. On the 24th of that month leaves began to drop 

 readily and the tree was sprayed with "Scalecide,"' at the rate of one 

 to twenty parts of water, covering thoroughly. 



Teee 34 — Lawrence Pear. Was sprayed with "'Kill-O-Scale,''" one 

 to twenty, October 14th, 1904, and with Xapthol-Sulphur, one to 

 water thirty-two parts, March 6th, 1905. Began to start slowly and 

 irregularly in early April, but toward the end of that month stopped, 

 began to wither, and early in May died off. Just what killed this tree 

 is not clear; it was not scaly enough to endanger its life, and both 

 '"Kill-O-Scale"' and Xapthol-Sulphur were safely applied to so many 

 trees that neither can be fairly charged with its death. 



Te.ee 35 — Japanese Walnut. Started early in April and bloomed 

 heavily in May, toward the end of which month the spikes were 

 entirely developed. Set quite a heavy crop of nuts, wliich disappeared 

 mysteriously about the time I expected to gather them. 



During midsummer the dry weather caused some of the leaves to 

 turn yellow and brown before dropping, and this thinned out the 

 foliage materially. The tree was not bare, however, until the begin- 

 ning of Xovember. On August 22d, sprayed with arsenate of lead, 

 one pound in nine gallons of water, to test its effect on foliage. Xo 

 harm was done, but the application probably wiped out a brood of 

 Datana larvse which developed during the early part of September. 



The scale condition is as usual. There are always some half-grown 

 specimens -scattered about, but I have found no fully-developed fe- 

 males and no brood of moving larvae. The appearance is as if the 

 insects were carried to the tree, set, reached the half-grown condition, 

 and then died. 



